![Rare events and time crystals](https://mappingignorance.org/app/uploads/2020/11/rare-events-1-320x180.jpg)
Rare events and time crystals
The concept of crystal is very old, and it is strongly related to symmetries. Basically, a crystal is a system with a repeated pattern through space. For instance, in ice the water molecules form a hexagonal pattern, giving rise to many different macroscopic forms. But, can it happen that a system presents a pattern not […]